A is two years older than B who is twice as old as C. If the total age of A,B and C is 27, then how old is B ?

A person crosses a 600 meters long street in 5 minutes. What is his speed in kilometers per hour ?

For what value of 'K' will the pair of equations 3x+4y=12 and kx+12=30 does not have a unique solution ?

If one of the roots of the quadratic equation x^2+mx+24= 0 is x=1.5, then what is the value of m ?

A number when divided by divisor leaves a remainder of 24. When twice the original number is divided by the sa...

10 cats caught 10 rats in 10 seconds. How many cats are required to catch 100 rats in 100 seconds ?

If A:B = 3:4, C:B= 5:4, C:D=10:9 then A:B:C:D is -